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XTR111: XTR111 Error Flag Output Pin Not working properly

Part Number: XTR111

Hi TI and All,

I have designed XTR111 ckt. for 4mA to 20mA output. It is working fine. But I am facing issue regarding Error flag Output Pin. I have attached fig. for better understanding of ckt. 

Observation: EF pin continuously low in the presence of Output load as well. So voltage at Gate of P MOSFET is 0V. And MOSFET is ON . So LED aslo continuously ON. But I want LED should be OFF when Load is connected at output and ON when load is disconnected. 

MOSFET Specification : P-Channel MOSFET -60V Vds 20V Vgs SOT-23,OTR- -55C to +150C

So I hope you have understand my problem, hoping for positive reply ASAP.